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RxCUI Directory

An RxCUI is the U.S. National Library of Medicine’s universal ID for one drug concept — an ingredient, a brand name, or a specific strength-and-form combination. Every concept page here connects that identifier to its FDA-listed products, package NDCs, NADAC pricing, and HCPCS billing codes, so other pages on this site can link a code straight to its meaning.

This page is curated, coded, and maintained by

Compiled from the public NLM RxNorm vocabulary and the FDA openFDA NDC directory. Editorial policy

One page for every drug concept in current FDA listings. Most are clinical drugs (TTY SCD: ingredient + strength + dose form, like ibuprofen 200 MG oral tablet) and branded drugs (SBD: the same drug under its brand name), plus multi-drug packs. The clinical drug is the anchor level where products, package NDCs, pricing, and billing line up.

Key Stats

16,643
Drug concepts
83,174
FDA products mapped
368,539
Package NDCs
Jul 14, 2026
Source data

Our RxCUI Database: Every Drug Concept Behind Current FDA Listings

What an RxCUI is, what a TTY is, and how to read every code in this directory — a two-minute primer. New to RxCUIs? Start here

Two things run this whole directory: the RxCUI and its TTY. An RxCUI is just a number — one number for one exact drug concept in RxNorm (the U.S. National Library of Medicine’s standard drug vocabulary). But the numbers all look alike: 5640, 198440, 310965 — nothing in the digits tells you what any of them is.

That is the job of the TTY (term type).

The TTY is the label that says whether an RxCUI is a bare ingredient, a brand name, or an exact ingredient + strength + form. Same-looking numbers, completely different meanings — the TTY is the key. So the habit for every RxCUI is simple: read the number, then read the TTY.

Same Medicine, Several RxCUIs — the TTY Tells Them Apart

Ibuprofen isn’t one code. Each layer of it is its own RxCUI, and only the TTY says which layer you’re looking at:

5640TTY INibuprofen — the bare ingredient
310965TTY SCDibuprofen 200 MG oral tablet — one exact clinical drug
153010TTY BN“Advil” — the brand name is its own RxCUI, tagged BN
153008TTY SBDibuprofen 200 MG Oral Tablet [Advil] — the same clinical drug under its brand — is yet another, tagged SBD
The concept types (TTYs) you’ll see in this directory

Every browse row below shows its TTY — click any code to jump to its definition here.

The Active Ingredient

IN · PIN · MIN — the substance itself, before strength or form.
IN
Ingredient

The active drug substance itself — no strength, form, or brand attached. Example: ibuprofen.

PIN
Precise ingredient

A specific form of an ingredient, such as a particular salt. Example: ibuprofen lysine.

MIN
Ingredient combination

Two or more active ingredients named together. Example: amlodipine / valsartan.

Generic (Clinical) Drugs

SCD and friends — ingredient + strength + dose form, unbranded.
SCD
Clinical drug

Ingredient + strength + dose form, unbranded. Example: ibuprofen 200 MG oral tablet.

SCDC
Clinical drug component

An ingredient at a specific strength, before a dose form is added.

SCDF
Clinical dose form

An ingredient in a dose form, without a specific strength.

SCDG
Clinical drug group

A grouping of related clinical drugs.

Brand-Name Drugs

BN · SBD and friends — trade names and branded drugs.
BN
Brand name

A trade name for a drug. Example: Advil.

SBD
Branded drug

Brand + ingredient + strength + form. Example: ibuprofen 200 MG oral tablet [Advil].

SBDF
Branded dose form

A brand in a dose form, without a specific strength.

SBDG
Branded drug group

A grouping of related branded drugs.

Multi-Drug Packs

GPCK · BPCK — sets of drugs packaged and sold together.
GPCK
Generic pack

A set of generic drugs packaged together, such as a dose-taper pack.

BPCK
Branded pack

A branded multi-drug pack.

Dose-Form Vocabulary

DF · DFG — tablets, solutions, and their broader families.
DF
Dose form

A form a medicine takes — tablet, solution, injection, and so on.

DFG
Dose-form group

A broader family of related dose forms.

🕸️ Reading a Concept Web

This is the interactive map you’ll find on every concept page — here shown for ibuprofen. One RxCUI never lives alone: follow the path from the raw ingredient down to the exact strength-and-form concepts FDA products carry. Hover or focus any chip for what it means.
The example concept Ibuprofen RxCUI 5640

Every web starts here: one RxCUI, one fixed meaning in the RxNorm vocabulary.

  1. Brand names (BN) 1

    BN, a brand name: the trade name alone — no strength, no form.

    • Advil 153010
  2. Dose form (DF) 1

    DF, a dose form: the bare form these come in — Oral Tablet is one concept shared by every oral-tablet drug, not unique to ibuprofen.

    • Oral Tablet 317541
  3. Clinical drugs (SCD) 4

    SCD, a clinical drug: ingredient + strength + dose form. The concept FDA product data attaches to most precisely.

    • Ibuprofen 200 MG Oral Tablet 310965
    • Ibuprofen 400 MG Oral Tablet 197805
    • Ibuprofen 600 MG Oral Tablet 197806
    • Ibuprofen 800 MG Oral Tablet 197807
  4. Branded drugs (SBD) 4

    SBD, a branded drug: that exact clinical drug under a brand name.

    • Ibuprofen 200 MG Oral Tablet [Advil] 153008
    • Ibuprofen 200 MG Oral Tablet [Genpril] 206886
    • Ibuprofen 600 MG Oral Tablet [Ibu] 206913
    • Ibuprofen 800 MG Oral Tablet [Ibu] 206917

A trimmed illustration for teaching. Every chip here is a real, verified RxNorm concept with its RxCUI printed. A real concept page draws the live web for its own RxCUI, one chip per stored related concept.
These are official RxNorm vocabulary relationships: how concepts name and organize the same drug. They do not establish therapeutic equivalence or substitutability. Two concepts appearing in one web is never a statement that products can be swapped.

Browse Concepts — 16,643 concepts in the current snapshot

TTY

Ordered by how many FDA products carry each concept. Clinical drugs (SCD: one exact ingredient + strength + dose form, such as ibuprofen 200 MG oral tablet) and branded drugs (SBD: the same drug under its brand name) lead the list, because those are the concepts FDA product listings name. The TTY column shows each row’s type — click any code to see what it means.

RxCUI Official name TTY Concept type Products Packages
543218 1 ML granisetron 0.1 MG/ML Injection SCD Clinical drug 4 3 View →
581645 Sildenafil 20 MG Oral Tablet [Revatio] SBD Branded drug 4 3 View →
617768 Lubiprostone 0.024 MG Oral Capsule [Amitiza] SBD Branded drug 4 3 View →
794641 Lubiprostone 0.008 MG Oral Capsule [Amitiza] SBD Branded drug 4 3 View →
882530 12.5 ML sildenafil 0.8 MG/ML Injection [Revatio] SBD Branded drug 4 3 View →
895753 Polyethylene glycol 400 0.004 MG/MG / propylene glycol 0.003 MG/MG Ophthalmic Gel SCD Clinical drug 4 3 View →
204504 1 ML digoxin 0.1 MG/ML Injection SCD Clinical drug 4 2 View →
208135 1 ML digoxin 0.1 MG/ML Injection [Lanoxin] SBD Branded drug 4 2 View →
208137 2 ML digoxin 0.25 MG/ML Injection [Lanoxin] SBD Branded drug 4 2 View →
898344 Amlodipine 10 MG / benazepril hydrochloride 20 MG Oral Capsule [Lotrel] SBD Branded drug 4 2 View →
898348 Amlodipine 10 MG / benazepril hydrochloride 40 MG Oral Capsule [Lotrel] SBD Branded drug 4 2 View →
898355 Amlodipine 5 MG / benazepril hydrochloride 10 MG Oral Capsule [Lotrel] SBD Branded drug 4 2 View →
898358 Amlodipine 5 MG / benazepril hydrochloride 20 MG Oral Capsule [Lotrel] SBD Branded drug 4 2 View →
997972 Helium 99.2 % Gas for Inhalation SCD Clinical drug 3 73 View →
2003712 Ethanol 0.635 ML/ML Topical Gel SCD Clinical drug 3 27 View →
1599543 Edoxaban 15 MG Oral Tablet SCD Clinical drug 3 20 View →
1599549 Edoxaban 15 MG Oral Tablet [Savaysa] SBD Branded drug 3 20 View →
1599551 Edoxaban 30 MG Oral Tablet SCD Clinical drug 3 20 View →
1599553 Edoxaban 30 MG Oral Tablet [Savaysa] SBD Branded drug 3 20 View →
1599555 Edoxaban 60 MG Oral Tablet SCD Clinical drug 3 20 View →
1599557 Edoxaban 60 MG Oral Tablet [Savaysa] SBD Branded drug 3 20 View →
1649008 Lidocaine 0.04 MG/MG / menthol 0.03 MG/MG Medicated Patch SCD Clinical drug 3 20 View →
542169 Helium 80 % / oxygen 20 % Gas for Inhalation SCD Clinical drug 3 19 View →
347131 Nitrogen 80 % / oxygen 20 % Gas for Inhalation SCD Clinical drug 3 17 View →
1797933 Fluticasone propionate 0.05 MG/ACTUAT Metered Dose Nasal Spray [Flonase] SBD Branded drug 3 15 View →
2536548 24 HR viloxazine 100 MG Extended Release Oral Capsule SCD Clinical drug 3 15 View →
2536554 24 HR viloxazine 100 MG Extended Release Oral Capsule [Qelbree] SBD Branded drug 3 15 View →
2536750 24 HR viloxazine 150 MG Extended Release Oral Capsule SCD Clinical drug 3 15 View →
2536752 24 HR viloxazine 150 MG Extended Release Oral Capsule [Qelbree] SBD Branded drug 3 15 View →
2536756 24 HR viloxazine 200 MG Extended Release Oral Capsule SCD Clinical drug 3 15 View →
2536758 24 HR viloxazine 200 MG Extended Release Oral Capsule [Qelbree] SBD Branded drug 3 15 View →
2723581 Liothyronine sodium 0.025 MG Oral Tablet [Liomny] SBD Branded drug 3 15 View →
2723583 Liothyronine sodium 0.05 MG Oral Tablet [Liomny] SBD Branded drug 3 15 View →
2723585 Liothyronine sodium 0.005 MG Oral Tablet [Liomny] SBD Branded drug 3 15 View →
1020479 Diphenhydramine hydrochloride 50 MG Oral Capsule [Banophen] SBD Branded drug 3 14 View →
1112233 Naproxen sodium 220 MG Oral Capsule [Aleve] SBD Branded drug 3 14 View →
1795621 150 ML glucose 50 MG/ML Injection SCD Clinical drug 3 14 View →
206905 Ibuprofen 400 MG Oral Tablet [Ibu] SBD Branded drug 3 14 View →
1045003 Chloroxylenol 7.5 MG/ML Medicated Liquid Soap SCD Clinical drug 3 13 View →
1790161 Cabozantinib 20 MG Oral Tablet SCD Clinical drug 3 13 View →
1790167 Cabozantinib 20 MG Oral Tablet [Cabometyx] SBD Branded drug 3 13 View →
1790169 Cabozantinib 40 MG Oral Tablet SCD Clinical drug 3 13 View →
1790171 Cabozantinib 40 MG Oral Tablet [Cabometyx] SBD Branded drug 3 13 View →
1790173 Cabozantinib 60 MG Oral Tablet SCD Clinical drug 3 13 View →
1790175 Cabozantinib 60 MG Oral Tablet [Cabometyx] SBD Branded drug 3 13 View →
1810304 Phentermine hydrochloride 8 MG Oral Tablet [Lomaira] SBD Branded drug 3 13 View →
665040 Sitagliptin phosphate 25 MG Oral Tablet [Januvia] SBD Branded drug 3 13 View →
995634 Meclizine hydrochloride 25 MG Chewable Tablet [Bonine] SBD Branded drug 3 13 View →
104062 Cimetidine 200 MG Oral Tablet [Tagamet] SBD Branded drug 3 12 View →
1243833 24 HR metformin hydrochloride 1000 MG / sitagliptin phosphate 100 MG Extended Release Oral... SBD Branded drug 3 12 View →
1243848 24 HR metformin hydrochloride 500 MG / sitagliptin phosphate 50 MG Extended Release Oral T... SBD Branded drug 3 12 View →
1370767 Hydrocortisone butyrate 1 MG/ML Topical Solution SCD Clinical drug 3 12 View →
1551782 Naloxegol 25 MG Oral Tablet SCD Clinical drug 3 12 View →
1551917 Naloxegol 12.5 MG Oral Tablet SCD Clinical drug 3 12 View →
1551923 Naloxegol 12.5 MG Oral Tablet [Movantik] SBD Branded drug 3 12 View →
1601373 Naloxegol 25 MG Oral Tablet [Movantik] SBD Branded drug 3 12 View →
1946525 Matrix Delivery 24 HR tramadol hydrochloride 300 MG Extended Release Oral Tablet SCD Clinical drug 3 12 View →
1946529 Matrix Delivery 24 HR tramadol hydrochloride 100 MG Extended Release Oral Tablet SCD Clinical drug 3 12 View →
2107300 Camphor 0.005 MG/MG / dimethicone 0.011 MG/MG / menthol 0.00625 MG/MG / phenol 0.005 MG/MG... SCD Clinical drug 3 12 View →
2562816 Finerenone 10 MG Oral Tablet SCD Clinical drug 3 12 View →

Pages exist only for concepts observed on real FDA product listings.

Where does this data come from?
Concept identity, names, and relationships come from the NLM RxNorm vocabulary; product and package mappings from the FDA openFDA NDC Directory. Each directory generation is validated and published as one immutable snapshot. This product uses publicly available data from the U.S. National Library of Medicine (NLM), National Institutes of Health, Department of Health and Human Services; NLM is not responsible for the product and does not endorse or recommend this or any other product.